2007 MERCEDES-BENZ CL-CLASS Owners Manual

662 Practical hints
Jump starting
Remove red cover from positive
terminal4.
Connect positive terminal3 of the
charged battery with positive
terminal4 of the discharged battery
with the jumper cable. Clamp cable to
charged battery3 first.
Connect negative terminal2 of
charged battery to jumper cables and
attach other end of the jumper cable
with the negative clamp1 to a suit-
able ground point on the vehicle.
Get into vehicle and start engine within
30 seconds.
If the starting attempt does not suc-
ceed:
Turn the SmartKey in starter switch
to position 0.
Take out the SmartKey.
Turn off engine of donor vehicle, re-
start it and let it run at idle speed
for several minutes.
Disconnect the jumper cable during
this time.
Reconnect jumper cable as de-
scribed before.
Restart engine.
While the engine is running, switch off
several electrical consumers such as
the blower.
Disconnect jumper cables first nega-
tive clamp1 from ground point and
negative terminal2, then from posi-
tive terminals4 and3.
Have the battery checked at the near-
est authorized Mercedes-Benz Center.!Never invert the terminal connections.

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663 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.
When circumstances do not permit the
recommended towing methods, the
vehicle may be towed with all wheels on
the ground or front axle raised only so far
as necessary to have the vehicle moved to
a safe location where the recommended
towing methods can be employed.
!Do not tow-start the vehicle.
!Use flatbed or wheel lift/dolly equipment
with SmartKey or SmartKey with KEYLESS-GO*
in starter switch turned to position0.
Do not tow with sling-type equipment. Towing
with sling-type equipment over bumpy roads will
damage radiator and supports.
Towing of the vehicle should only be done using
the properly installed towing eye bolt. Never at-
tach tow cable, tow rope, or tow rod, to vehicle
chassis, frame, or suspension parts.
Switch off the ESP
® (page 71), the tow-away
alarm (
page 78) and the automatic central
locking (
page 334).
Warning!G
If circumstances require towing the vehicle
with all wheels on the ground, always tow
with a tow bar if:

the engine will not run

there is a malfunction in the brake
system

there is a malfunction in the power
supply or in the vehicle’s electrical
system
as that will be necessary to adequately
control the towed vehicle.
Prior to towing the vehicle with all wheels on
the ground, make sure the SmartKey or
SmartKey with KEYLESS-GO* is in starter
switch position 2.
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664 Practical hints
Towing the vehicle
Warning!G
With the engine not running, there is no
power assistance for the brake and steering
systems. In this case, it is important to keep
in mind that a considerably higher degree of
effort is necessary to brake and steer the
vehicle. Adapt your driving accordingly.
!When towing the vehicle with all wheels on
the ground or with the front axle raised, the start-
er battery must be connected and charged. Oth-
erwise:

you will not be able to switch on the ignition

you will not be able to engage the automatic
transmission in positionN (
page 394)

you cannot release the electronic parking
brake
For information on charging the starter battery
see “Batteries” (
page 655) or see “Jump start-
ing” (
page 660).
!Make sure that the electronic parking brake
is released. If the electronic parking brake is
malfunctioning, release it mechanically
(
page 637).
!If the vehicle is towed with the front axle
raised, the automatic transmission must be in
positionN and the engine must be shut off
(SmartKey or SmartKey with KEYLESS-GO* in
starter switch position0 or1). Active braking
action through the ESP
® may otherwise
seriously damage the brake system.
!When towing the vehicle with all wheels on
the ground, the automatic transmission must be
shifted to positionN and the SmartKey or
SmartKey with KEYLESS-GO* must be in starter
switch position2.
When towing the vehicle with all wheels on the
ground or the front axle raised, the vehicle may
be towed only for distances up to 30 miles
(50 km) and at a speed not to exceed 30 mph
(50 km/h).
!If the vehicle is towed with all wheels on the
ground or with the front axle raised, the trans-
mission must be in positionN.
If you turn off the engine using

the SmartKey and

remove the SmartKey from the starter
switch
or

open a door

the KEYLESS-GO* start/stop button and
open a door
the transmission will shift to park position P
automatically.
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665 Practical hints
Towing the vehicle
If you want the gear position to remain in
neutral position N, observe the following
instructions.
Vehicles with SmartKey:
With the vehicle at a standstill and the
ignition switched on shift the
automatic transmission to neutral
positionN.
If engaged, manually release the elec-
tronic parking brake (
page 385).
Switch off the ignition and leave the
SmartKey in the starter switch.Vehicles with KEYLESS-GO*:
With the vehicle at a standstill, depress
the brake pedal and keep it pressed.
With the ignition switched on shift the
automatic transmission to park
positionP.
Release the brake pedal.
Remove the KEYLESS-GO start/stop
button from the starter switch
(
page 337).
Insert the SmartKey with KEYLESS-GO
into the starter switch.
Switch on the ignition.
Depress the brake pedal.
Shift the automatic transmission to
neutral positionN.
Release the brake pedal.
If engaged, manually release the
electronic parking brake (
page 385).
Switch off the ignition and leave the
SmartKey with KEYLESS-GO in the
starter switch.
Warning!G
When leaving the SmartKey or SmartKey
with KEYLESS-GO* in the starter switch, do
not leave children unattended in the vehicle.
It is possible for children to switch on the
ignition which could result in unsupervised
use of vehicle equipment. Unsupervised use
of vehicle equipment could result in an
accident and/or serious personal injury.
iWhen towing the vehicle with all wheels on
the ground, please note the following:
With the automatic central locking activated and
the SmartKey or SmartKey with KEYLESS-GO* in
starter switch position 2, the vehicle doors lock
if the left front wheel as well as the right rear
wheel are turning at vehicle speeds of approxi-
mately 9mph (15km/h) or more.
To prevent the vehicle doors from locking,
deactivate the automatic central locking
(
page 334).
iTo signal turns while being towed with the
hazard warning flasher in use, turn SmartKey or
SmartKey with KEYLESS-GO* in starter switch to
position2 and activate the combination switch
for the left or right turn signal in the usual
manner – only the selected turn signal will
operate.
Upon canceling the turn signal, the hazard
warning flasher will operate again.
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666 Practical hints
Towing the vehicle
Installing towing eye bolt
1Cover on right side of front bumper
1Cover on right side of rear bumperRemoving cover
Press mark on cover1 in the direction
of arrow.
Lift cover off to reveal the threaded
hole for towing eye bolt.
Installing towing eye bolt
Take towing eye bolt and wheel wrench
out of the vehicle tool kit in the trunk
(
page 632).
Screw towing eye bolt clockwise into
its stop and tighten with wheel wrench.Removing towing eye bolt
Loosen towing eye bolt counterclock-
wise with wheel wrench.
Unscrew towing eye bolt.
Store towing eye bolt and wheel
wrench in the vehicle tool kit in the
trunk.
Installing cover
Fit cover1 and snap into place.
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667 Practical hints
Fuses
Fuses
The electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the component(s) and
systems secured by that fuse will stop op-
erating.
If a newly inserted fuse blows again, have
the cause determined and rectified by an
authorized Mercedes-Benz Center.
The following aids are available to help you
replace fuses. They are located in the trunk
with the vehicle tool kit (
page 632):

Fuse chart
The fuse chart explains the fuse alloca-
tion and fuse amperages.

Spare fuses

Special fuse extractor
The electrical fuses are located in different
fuse boxes:

in the dashboard on the passenger side
(
page 669)

in the dashboard on the driver’s side
(
page 669)

behind the rear center armrest
(
page 669)

on the driver’s side of the engine com-
partment (
page 668)

on the passenger side of the engine
compartment (
page 668)
Before replacing fuses:
Engage the electronic parking brake
(
page 384).
Make sure the automatic transmission
is set to P (
page 389).
The gear position indicator in the ta-
chometer display should be on P.
Turn off all electrical consumers.
Turn off the engine (page 387).
Switch off the vehicle’s internal electri-
cal functions (
page 658).
Warning!G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question and do not attempt to repair or
bridge a blown fuse. Using other than ap-
proved fuses or using repaired or bridged
fuses may cause an overload leading to a
fire, and/or cause damage to electrical
components and/or systems. Have the
cause determined and remedied by an
authorized Mercedes-Benz Center.
!Switch off the vehicle’s internal electrical
functions (
page 658) when you are working on
the fuses.
iA blown fuse must be replaced by an appro-
priate spare fuse (recognizable by its color or the
fuse rating given on the fuse) of the amperage
recommended in the fuse chart.
Any Mercedes-Benz Center will be glad to advise
you on this subject.
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668 Practical hints
Fuses
Fuse boxes in engine compartment
Open the hood (page 512).
Box on the driver’s side
Example illustration from CL 550
14 screws
2Cover
3JumperOpening
Take the crank from the Operator’s
Manual pouch.
Loosen screws1 with crank.
Remove jumper3.
Remove cover2.
Closing
Attach cover2.
Attach jumper3.
Tighten screws1 with crank.Box on the front passenger side
Example illustration from CL 550
1Retaining lugs
2Cover
Opening
Press retaining lugs1.
Remove cover2.
!The cover must fit properly, as otherwise
moisture or dirt may impair the functionality of
the fuses.
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669 Practical hints
Fuses
Closing
Attach cover2.
Press cover2 down manually.
Fuse boxes in passenger compartment
Fuse boxes in dashboard
1Cover1Cover
Opening
Open the respective door.
Using your hands, pull cover1 in the
direction of the arrow and remove.
Closing
Hook cover1 into the opening at the
front.
Press cover1 back on until it engag-
es.
!The cover must fit properly, as otherwise
moisture or dirt may impair the functionality of
the fuses.
!Do not use sharp objects such as a screw
driver to open the fuse box cover in the dash-
board, as this could damage it.
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